Description

4',5'-Dibromofluorescein Octadecyl Ester is a synthetic, lipophilic derivative of fluorescein, a classic xanthene dye. This compound is engineered to provide enhanced solubility in non-polar matrices and improved photostability for specialized analytical and material science applications. It is primarily utilized by researchers and product developers in the life sciences, advanced materials, and specialty chemical sectors seeking precise fluorescent labeling and detection capabilities.

Application

• Fluorescent Probe Development: Acts as a hydrophobic fluorescent tag or tracer in the synthesis of novel probes for cellular membrane studies and lipid bilayer research.
• Material Science Marker: Used as a dopant or indicator in polymers, resins, and coatings to study material homogeneity, diffusion processes, or as a non-destructive inspection aid.
• Analytical Chemistry Reagent: Serves as a standard or a derivatization agent in chromatographic methods (e.g., HPLC, TLC) for the detection and quantification of specific analytes.
• Sensor Fabrication: Incorporated into the design of optical chemical sensors and biosensors due to its modifiable fluorescence properties.
• Photodynamic Research: Investigated for its potential in photophysical and photochemical studies, including energy transfer systems.

Basic Information

Product Name	4',5'-Dibromofluorescein Octadecyl Ester
CAS No.	138833-47-3
Molecular Formula	C50H68Br2O5
Molecular Weight	908.88 g/mol
Synonyms	Octadecyl 4',5'-Dibromofluorescein Ester; 4',5'-Dibromofluorescein Stearyl Ester; DBF-Octadecyl Ester; 2-(3',6'-Dibromo-2',4',5',7'-tetrahydroxy-3H-xanthen-3-ylidene)-4,5-dibromobenzoic Acid Octadecyl Ester; Stearyl 4',5'-Dibromofluorescein; Fluorescein, 4',5'-dibromo-, octadecyl ester; C18-DBF
EINECS	Contact for details

Quality Control

Our 4',5'-Dibromofluorescein Octadecyl Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR). We provide a detailed Certificate of Analysis (COA) with every shipment to ensure traceability and compliance with your research or production specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is light-sensitive (store away from light) and should be handled under inert atmosphere when appropriate to prevent degradation.

Specification

Item	Specification
Appearance	Orange to red powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.